diff options
| author | Kuniyuki Iwashima <kuniyu@google.com> | 2025-08-15 20:16:18 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-08-19 19:20:59 -0700 |
| commit | bf64002c94fc330b996bc438f3d1b6bd3d781659 (patch) | |
| tree | 301d2429a3fb600e781c1127c1c2d75759ab0f7a | |
| parent | b2ffd10cddde47cc6830e4981e91e3215def62b1 (diff) | |
net: Define sk_memcg under CONFIG_MEMCG.
Except for sk_clone_lock(), all accesses to sk->sk_memcg
is done under CONFIG_MEMCG.
As a bonus, let's define sk->sk_memcg under CONFIG_MEMCG.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Link: https://patch.msgid.link/20250815201712.1745332-11-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | include/net/sock.h | 2 | ||||
| -rw-r--r-- | net/core/sock.c | 4 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 3bc4d566f7d0..1c49ea13af4a 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -443,7 +443,9 @@ struct sock { __cacheline_group_begin(sock_read_rxtx); int sk_err; struct socket *sk_socket; +#ifdef CONFIG_MEMCG struct mem_cgroup *sk_memcg; +#endif #ifdef CONFIG_XFRM struct xfrm_policy __rcu *sk_policy[2]; #endif diff --git a/net/core/sock.c b/net/core/sock.c index 5537ca263858..ab6953d295df 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2512,8 +2512,10 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) sock_reset_flag(newsk, SOCK_DONE); +#ifdef CONFIG_MEMCG /* sk->sk_memcg will be populated at accept() time */ newsk->sk_memcg = NULL; +#endif cgroup_sk_clone(&newsk->sk_cgrp_data); @@ -4452,7 +4454,9 @@ static int __init sock_struct_check(void) CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_rxtx, sk_err); CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_rxtx, sk_socket); +#ifdef CONFIG_MEMCG CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_read_rxtx, sk_memcg); +#endif CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_write_rxtx, sk_lock); CACHELINE_ASSERT_GROUP_MEMBER(struct sock, sock_write_rxtx, sk_reserved_mem); |